def Prosto(n):
    t=True
    for i in range(2,int(n**0,5)+1):
        if n%i=0:
            t=False
        return t
    s=input
    aif=["zero",'one','two','three','four','five','six','seven','eight','nine']
    s=s.split()
    if (s[] in
    
